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html2canvas.min.js
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// Taken from https://cdnjs.cloudflare.com/ajax/libs/html2canvas/0.4.1/html2canvas.min.js
/*
html2canvas 0.4.1 <http://html2canvas.hertzen.com>
Copyright (c) 2013 Niklas von Hertzen
Released under MIT License
*/
(function(t,e,n){"use strict";function r(t,e,n){var r,a=t.runtimeStyle&&t.runtimeStyle[e],o=t.style;return!/^-?[0-9]+\.?[0-9]*(?:px)?$/i.test(n)&&/^-?\d/.test(n)&&(r=o.left,a&&(t.runtimeStyle.left=t.currentStyle.left),o.left="fontSize"===e?"1em":n||0,n=o.pixelLeft+"px",o.left=r,a&&(t.runtimeStyle.left=a)),/^(thin|medium|thick)$/i.test(n)?n:Math.round(parseFloat(n))+"px"}function a(t){return parseInt(t,10)}function o(t,e,a,o){if(t=(t||"").split(","),t=t[o||0]||t[0]||"auto",t=u.Util.trimText(t).split(" "),"backgroundSize"!==a||t[0]&&!t[0].match(/cover|contain|auto/)){if(t[0]=-1===t[0].indexOf("%")?r(e,a+"X",t[0]):t[0],t[1]===n){if("backgroundSize"===a)return t[1]="auto",t;t[1]=t[0]}t[1]=-1===t[1].indexOf("%")?r(e,a+"Y",t[1]):t[1]}else;return t}function i(t,e,n,r,a,o){var i,l,s,c,d=u.Util.getCSS(e,t,a);if(1===d.length&&(c=d[0],d=[],d[0]=c,d[1]=c),-1!==(""+d[0]).indexOf("%"))s=parseFloat(d[0])/100,l=n.width*s,"backgroundSize"!==t&&(l-=(o||r).width*s);else if("backgroundSize"===t)if("auto"===d[0])l=r.width;else if(/contain|cover/.test(d[0])){var h=u.Util.resizeBounds(r.width,r.height,n.width,n.height,d[0]);l=h.width,i=h.height}else l=parseInt(d[0],10);else l=parseInt(d[0],10);return"auto"===d[1]?i=l/r.width*r.height:-1!==(""+d[1]).indexOf("%")?(s=parseFloat(d[1])/100,i=n.height*s,"backgroundSize"!==t&&(i-=(o||r).height*s)):i=parseInt(d[1],10),[l,i]}function l(t,e){var n=[];return{storage:n,width:t,height:e,clip:function(){n.push({type:"function",name:"clip",arguments:arguments})},translate:function(){n.push({type:"function",name:"translate",arguments:arguments})},fill:function(){n.push({type:"function",name:"fill",arguments:arguments})},save:function(){n.push({type:"function",name:"save",arguments:arguments})},restore:function(){n.push({type:"function",name:"restore",arguments:arguments})},fillRect:function(){n.push({type:"function",name:"fillRect",arguments:arguments})},createPattern:function(){n.push({type:"function",name:"createPattern",arguments:arguments})},drawShape:function(){var t=[];return n.push({type:"function",name:"drawShape",arguments:t}),{moveTo:function(){t.push({name:"moveTo",arguments:arguments})},lineTo:function(){t.push({name:"lineTo",arguments:arguments})},arcTo:function(){t.push({name:"arcTo",arguments:arguments})},bezierCurveTo:function(){t.push({name:"bezierCurveTo",arguments:arguments})},quadraticCurveTo:function(){t.push({name:"quadraticCurveTo",arguments:arguments})}}},drawImage:function(){n.push({type:"function",name:"drawImage",arguments:arguments})},fillText:function(){n.push({type:"function",name:"fillText",arguments:arguments})},setVariable:function(t,e){return n.push({type:"variable",name:t,arguments:e}),e}}}function s(t){return{zindex:t,children:[]}}var c,d,u={};u.Util={},u.Util.log=function(e){u.logging&&t.console&&t.console.log&&t.console.log(e)},u.Util.trimText=function(t){return function(e){return t?t.apply(e):((e||"")+"").replace(/^\s+|\s+$/g,"")}}(String.prototype.trim),u.Util.asFloat=function(t){return parseFloat(t)},function(){var t=/((rgba|rgb)\([^\)]+\)(\s-?\d+px){0,})/g,e=/(-?\d+px)|(#.+)|(rgb\(.+\))|(rgba\(.+\))/g;u.Util.parseTextShadows=function(n){if(!n||"none"===n)return[];for(var r=n.match(t),a=[],o=0;r&&r.length>o;o++){var i=r[o].match(e);a.push({color:i[0],offsetX:i[1]?i[1].replace("px",""):0,offsetY:i[2]?i[2].replace("px",""):0,blur:i[3]?i[3].replace("px",""):0})}return a}}(),u.Util.parseBackgroundImage=function(t){var e,n,r,a,o,i,l,s,c=" \r\n ",d=[],u=0,h=0,f=function(){e&&('"'===n.substr(0,1)&&(n=n.substr(1,n.length-2)),n&&s.push(n),"-"===e.substr(0,1)&&(a=e.indexOf("-",1)+1)>0&&(r=e.substr(0,a),e=e.substr(a)),d.push({prefix:r,method:e.toLowerCase(),value:o,args:s})),s=[],e=r=n=o=""};f();for(var p=0,g=t.length;g>p;p++)if(i=t[p],!(0===u&&c.indexOf(i)>-1)){switch(i){case'"':l?l===i&&(l=null):l=i;break;case"(":if(l)break;if(0===u){u=1,o+=i;continue}h++;break;case")":if(l)break;if(1===u){if(0===h){u=0,o+=i,f();continue}h--}break;case",":if(l)break;if(0===u){f();continue}if(1===u&&0===h&&!e.match(/^url$/i)){s.push(n),n="",o+=i;continue}}o+=i,0===u?e+=i:n+=i}return f(),d},u.Util.Bounds=function(t){var e,n={};return t.getBoundingClientRect&&(e=t.getBoundingClientRect(),n.top=e.top,n.bottom=e.bottom||e.top+e.height,n.left=e.left,n.width=t.offsetWidth,n.height=t.offsetHeight),n},u.Util.OffsetBounds=function(t){var e=t.offsetParent?u.Util.OffsetBounds(t.offsetParent):{top:0,left:0};return{top:t.offsetTop+e.top,bottom:t.offsetTop+t.offsetHeight+e.top,left:t.offsetLeft+e.left,width:t.offsetWidth,height:t.offsetHeight}},u.Util.getCSS=function(t,n,r){c!==t&&(d=e.defaultView.getComputedStyle(t,null));var i=d[n];if(/^background(Size|Position)$/.test(n))return o(i,t,n,r);if(/border(Top|Bottom)(Left|Right)Radius/.test(n)){var l=i.split(" ");return 1>=l.length&&(l[1]=l[0]),l.map(a)}return i},u.Util.resizeBounds=function(t,e,n,r,a){var o,i,l=n/r,s=t/e;return a&&"auto"!==a?s>l^"contain"===a?(i=r,o=r*s):(o=n,i=n/s):(o=n,i=r),{width:o,height:i}},u.Util.BackgroundPosition=function(t,e,n,r,a){var o=i("backgroundPosition",t,e,n,r,a);return{left:o[0],top:o[1]}},u.Util.BackgroundSize=function(t,e,n,r){var a=i("backgroundSize",t,e,n,r);return{width:a[0],height:a[1]}},u.Util.Extend=function(t,e){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n]);return e},u.Util.Children=function(t){var e;try{e=t.nodeName&&"IFRAME"===t.nodeName.toUpperCase()?t.contentDocument||t.contentWindow.document:function(t){var e=[];return null!==t&&function(t,e){var r=t.length,a=0;if("number"==typeof e.length)for(var o=e.length;o>a;a++)t[r++]=e[a];else for(;e[a]!==n;)t[r++]=e[a++];return t.length=r,t}(e,t),e}(t.childNodes)}catch(r){u.Util.log("html2canvas.Util.Children failed with exception: "+r.message),e=[]}return e},u.Util.isTransparent=function(t){return"transparent"===t||"rgba(0, 0, 0, 0)"===t},u.Util.Font=function(){var t={};return function(e,r,a){if(t[e+"-"+r]!==n)return t[e+"-"+r];var o,i,l,s=a.createElement("div"),c=a.createElement("img"),d=a.createElement("span"),u="Hidden Text";return s.style.visibility="hidden",s.style.fontFamily=e,s.style.fontSize=r,s.style.margin=0,s.style.padding=0,a.body.appendChild(s),c.src="data:image/gif;base64,R0lGODlhAQABAIABAP///wAAACwAAAAAAQABAAACAkQBADs=",c.width=1,c.height=1,c.style.margin=0,c.style.padding=0,c.style.verticalAlign="baseline",d.style.fontFamily=e,d.style.fontSize=r,d.style.margin=0,d.style.padding=0,d.appendChild(a.createTextNode(u)),s.appendChild(d),s.appendChild(c),o=c.offsetTop-d.offsetTop+1,s.removeChild(d),s.appendChild(a.createTextNode(u)),s.style.lineHeight="normal",c.style.verticalAlign="super",i=c.offsetTop-s.offsetTop+1,l={baseline:o,lineWidth:1,middle:i},t[e+"-"+r]=l,a.body.removeChild(s),l}}(),function(){function t(t){return function(e){try{t.addColorStop(e.stop,e.color)}catch(r){n.log(["failed to add color stop: ",r,"; tried to add: ",e])}}}var n=u.Util,r={};u.Generate=r;var a=[/^(-webkit-linear-gradient)\(([a-z\s]+)([\w\d\.\s,%\(\)]+)\)$/,/^(-o-linear-gradient)\(([a-z\s]+)([\w\d\.\s,%\(\)]+)\)$/,/^(-webkit-gradient)\((linear|radial),\s((?:\d{1,3}%?)\s(?:\d{1,3}%?),\s(?:\d{1,3}%?)\s(?:\d{1,3}%?))([\w\d\.\s,%\(\)\-]+)\)$/,/^(-moz-linear-gradient)\(((?:\d{1,3}%?)\s(?:\d{1,3}%?))([\w\d\.\s,%\(\)]+)\)$/,/^(-webkit-radial-gradient)\(((?:\d{1,3}%?)\s(?:\d{1,3}%?)),\s(\w+)\s([a-z\-]+)([\w\d\.\s,%\(\)]+)\)$/,/^(-moz-radial-gradient)\(((?:\d{1,3}%?)\s(?:\d{1,3}%?)),\s(\w+)\s?([a-z\-]*)([\w\d\.\s,%\(\)]+)\)$/,/^(-o-radial-gradient)\(((?:\d{1,3}%?)\s(?:\d{1,3}%?)),\s(\w+)\s([a-z\-]+)([\w\d\.\s,%\(\)]+)\)$/];r.parseGradient=function(t,e){var n,r,o,i,l,s,c,d,u,h,f,p,g=a.length;for(r=0;g>r&&!(o=t.match(a[r]));r+=1);if(o)switch(o[1]){case"-webkit-linear-gradient":case"-o-linear-gradient":if(n={type:"linear",x0:null,y0:null,x1:null,y1:null,colorStops:[]},l=o[2].match(/\w+/g))for(s=l.length,r=0;s>r;r+=1)switch(l[r]){case"top":n.y0=0,n.y1=e.height;break;case"right":n.x0=e.width,n.x1=0;break;case"bottom":n.y0=e.height,n.y1=0;break;case"left":n.x0=0,n.x1=e.width}if(null===n.x0&&null===n.x1&&(n.x0=n.x1=e.width/2),null===n.y0&&null===n.y1&&(n.y0=n.y1=e.height/2),l=o[3].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\)(?:\s\d{1,3}(?:%|px))?)+/g))for(s=l.length,c=1/Math.max(s-1,1),r=0;s>r;r+=1)d=l[r].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\))\s*(\d{1,3})?(%|px)?/),d[2]?(i=parseFloat(d[2]),i/="%"===d[3]?100:e.width):i=r*c,n.colorStops.push({color:d[1],stop:i});break;case"-webkit-gradient":if(n={type:"radial"===o[2]?"circle":o[2],x0:0,y0:0,x1:0,y1:0,colorStops:[]},l=o[3].match(/(\d{1,3})%?\s(\d{1,3})%?,\s(\d{1,3})%?\s(\d{1,3})%?/),l&&(n.x0=l[1]*e.width/100,n.y0=l[2]*e.height/100,n.x1=l[3]*e.width/100,n.y1=l[4]*e.height/100),l=o[4].match(/((?:from|to|color-stop)\((?:[0-9\.]+,\s)?(?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\)\))+/g))for(s=l.length,r=0;s>r;r+=1)d=l[r].match(/(from|to|color-stop)\(([0-9\.]+)?(?:,\s)?((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\))\)/),i=parseFloat(d[2]),"from"===d[1]&&(i=0),"to"===d[1]&&(i=1),n.colorStops.push({color:d[3],stop:i});break;case"-moz-linear-gradient":if(n={type:"linear",x0:0,y0:0,x1:0,y1:0,colorStops:[]},l=o[2].match(/(\d{1,3})%?\s(\d{1,3})%?/),l&&(n.x0=l[1]*e.width/100,n.y0=l[2]*e.height/100,n.x1=e.width-n.x0,n.y1=e.height-n.y0),l=o[3].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\)(?:\s\d{1,3}%)?)+/g))for(s=l.length,c=1/Math.max(s-1,1),r=0;s>r;r+=1)d=l[r].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\))\s*(\d{1,3})?(%)?/),d[2]?(i=parseFloat(d[2]),d[3]&&(i/=100)):i=r*c,n.colorStops.push({color:d[1],stop:i});break;case"-webkit-radial-gradient":case"-moz-radial-gradient":case"-o-radial-gradient":if(n={type:"circle",x0:0,y0:0,x1:e.width,y1:e.height,cx:0,cy:0,rx:0,ry:0,colorStops:[]},l=o[2].match(/(\d{1,3})%?\s(\d{1,3})%?/),l&&(n.cx=l[1]*e.width/100,n.cy=l[2]*e.height/100),l=o[3].match(/\w+/),d=o[4].match(/[a-z\-]*/),l&&d)switch(d[0]){case"farthest-corner":case"cover":case"":u=Math.sqrt(Math.pow(n.cx,2)+Math.pow(n.cy,2)),h=Math.sqrt(Math.pow(n.cx,2)+Math.pow(n.y1-n.cy,2)),f=Math.sqrt(Math.pow(n.x1-n.cx,2)+Math.pow(n.y1-n.cy,2)),p=Math.sqrt(Math.pow(n.x1-n.cx,2)+Math.pow(n.cy,2)),n.rx=n.ry=Math.max(u,h,f,p);break;case"closest-corner":u=Math.sqrt(Math.pow(n.cx,2)+Math.pow(n.cy,2)),h=Math.sqrt(Math.pow(n.cx,2)+Math.pow(n.y1-n.cy,2)),f=Math.sqrt(Math.pow(n.x1-n.cx,2)+Math.pow(n.y1-n.cy,2)),p=Math.sqrt(Math.pow(n.x1-n.cx,2)+Math.pow(n.cy,2)),n.rx=n.ry=Math.min(u,h,f,p);break;case"farthest-side":"circle"===l[0]?n.rx=n.ry=Math.max(n.cx,n.cy,n.x1-n.cx,n.y1-n.cy):(n.type=l[0],n.rx=Math.max(n.cx,n.x1-n.cx),n.ry=Math.max(n.cy,n.y1-n.cy));break;case"closest-side":case"contain":"circle"===l[0]?n.rx=n.ry=Math.min(n.cx,n.cy,n.x1-n.cx,n.y1-n.cy):(n.type=l[0],n.rx=Math.min(n.cx,n.x1-n.cx),n.ry=Math.min(n.cy,n.y1-n.cy))}if(l=o[5].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\)(?:\s\d{1,3}(?:%|px))?)+/g))for(s=l.length,c=1/Math.max(s-1,1),r=0;s>r;r+=1)d=l[r].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\))\s*(\d{1,3})?(%|px)?/),d[2]?(i=parseFloat(d[2]),i/="%"===d[3]?100:e.width):i=r*c,n.colorStops.push({color:d[1],stop:i})}return n},r.Gradient=function(n,r){if(0!==r.width&&0!==r.height){var a,o,i=e.createElement("canvas"),l=i.getContext("2d");if(i.width=r.width,i.height=r.height,a=u.Generate.parseGradient(n,r))switch(a.type){case"linear":o=l.createLinearGradient(a.x0,a.y0,a.x1,a.y1),a.colorStops.forEach(t(o)),l.fillStyle=o,l.fillRect(0,0,r.width,r.height);break;case"circle":o=l.createRadialGradient(a.cx,a.cy,0,a.cx,a.cy,a.rx),a.colorStops.forEach(t(o)),l.fillStyle=o,l.fillRect(0,0,r.width,r.height);break;case"ellipse":var s=e.createElement("canvas"),c=s.getContext("2d"),d=Math.max(a.rx,a.ry),h=2*d;s.width=s.height=h,o=c.createRadialGradient(a.rx,a.ry,0,a.rx,a.ry,d),a.colorStops.forEach(t(o)),c.fillStyle=o,c.fillRect(0,0,h,h),l.fillStyle=a.colorStops[a.colorStops.length-1].color,l.fillRect(0,0,i.width,i.height),l.drawImage(s,a.cx-a.rx,a.cy-a.ry,2*a.rx,2*a.ry)}return i}},r.ListAlpha=function(t){var e,n="";do e=t%26,n=String.fromCharCode(e+64)+n,t/=26;while(26*t>26);return n},r.ListRoman=function(t){var e,n=["M","CM","D","CD","C","XC","L","XL","X","IX","V","IV","I"],r=[1e3,900,500,400,100,90,50,40,10,9,5,4,1],a="",o=n.length;if(0>=t||t>=4e3)return t;for(e=0;o>e;e+=1)for(;t>=r[e];)t-=r[e],a+=n[e];return a}}(),u.Parse=function(r,a){function o(){return Math.max(Math.max(de.body.scrollWidth,de.documentElement.scrollWidth),Math.max(de.body.offsetWidth,de.documentElement.offsetWidth),Math.max(de.body.clientWidth,de.documentElement.clientWidth))}function i(){return Math.max(Math.max(de.body.scrollHeight,de.documentElement.scrollHeight),Math.max(de.body.offsetHeight,de.documentElement.offsetHeight),Math.max(de.body.clientHeight,de.documentElement.clientHeight))}function c(t,e){var n=parseInt(ge(t,e),10);return isNaN(n)?0:n}function d(t,e,n,r,a,o){"transparent"!==o&&(t.setVariable("fillStyle",o),t.fillRect(e,n,r,a),ce+=1)}function h(t,e,r){return t.length>0?e+r.toUpperCase():n}function f(t,e){switch(e){case"lowercase":return t.toLowerCase();case"capitalize":return t.replace(/(^|\s|:|-|\(|\))([a-z])/g,h);case"uppercase":return t.toUpperCase();default:return t}}function p(t){return/^(normal|none|0px)$/.test(t)}function g(t,e,n,r){null!==t&&ue.trimText(t).length>0&&(r.fillText(t,e,n),ce+=1)}function m(t,e,r,a){var o=!1,i=ge(e,"fontWeight"),l=ge(e,"fontFamily"),s=ge(e,"fontSize"),c=ue.parseTextShadows(ge(e,"textShadow"));switch(parseInt(i,10)){case 401:i="bold";break;case 400:i="normal"}return t.setVariable("fillStyle",a),t.setVariable("font",[ge(e,"fontStyle"),ge(e,"fontVariant"),i,s,l].join(" ")),t.setVariable("textAlign",o?"right":"left"),c.length&&(t.setVariable("shadowColor",c[0].color),t.setVariable("shadowOffsetX",c[0].offsetX),t.setVariable("shadowOffsetY",c[0].offsetY),t.setVariable("shadowBlur",c[0].blur)),"none"!==r?ue.Font(l,s,de):n}function y(t,e,n,r,a){switch(e){case"underline":d(t,n.left,Math.round(n.top+r.baseline+r.lineWidth),n.width,1,a);break;case"overline":d(t,n.left,Math.round(n.top),n.width,1,a);break;case"line-through":d(t,n.left,Math.ceil(n.top+r.middle+r.lineWidth),n.width,1,a)}}function b(t,e,n,r,a){var o;if(he.rangeBounds&&!a)("none"!==n||0!==ue.trimText(e).length)&&(o=w(e,t.node,t.textOffset)),t.textOffset+=e.length;else if(t.node&&"string"==typeof t.node.nodeValue){var i=r?t.node.splitText(e.length):null;o=x(t.node,a),t.node=i}return o}function w(t,e,n){var r=de.createRange();return r.setStart(e,n),r.setEnd(e,n+t.length),r.getBoundingClientRect()}function x(t,e){var n=t.parentNode,r=de.createElement("wrapper"),a=t.cloneNode(!0);r.appendChild(t.cloneNode(!0)),n.replaceChild(r,t);var o=e?ue.OffsetBounds(r):ue.Bounds(r);return n.replaceChild(a,r),o}function v(t,e,n){var r,o,i=n.ctx,l=ge(t,"color"),s=ge(t,"textDecoration"),c=ge(t,"textAlign"),d={node:e,textOffset:0};ue.trimText(e.nodeValue).length>0&&(e.nodeValue=f(e.nodeValue,ge(t,"textTransform")),c=c.replace(["-webkit-auto"],["auto"]),o=!a.letterRendering&&/^(left|right|justify|auto)$/.test(c)&&p(ge(t,"letterSpacing"))?e.nodeValue.split(/(\b| )/):e.nodeValue.split(""),r=m(i,t,s,l),a.chinese&&o.forEach(function(t,e){/.*[\u4E00-\u9FA5].*$/.test(t)&&(t=t.split(""),t.unshift(e,1),o.splice.apply(o,t))}),o.forEach(function(t,e){var a=b(d,t,s,o.length-1>e,n.transform.matrix);a&&(g(t,a.left,a.bottom,i),y(i,s,a,r,l))}))}function k(t,e){var n,r,a=de.createElement("boundelement");return a.style.display="inline",n=t.style.listStyleType,t.style.listStyleType="none",a.appendChild(de.createTextNode(e)),t.insertBefore(a,t.firstChild),r=ue.Bounds(a),t.removeChild(a),t.style.listStyleType=n,r}function C(t){var e=-1,n=1,r=t.parentNode.childNodes;if(t.parentNode){for(;r[++e]!==t;)1===r[e].nodeType&&n++;return n}return-1}function T(t,e){var n,r=C(t);switch(e){case"decimal":n=r;break;case"decimal-leading-zero":n=1===(""+r).length?r="0"+(""+r):""+r;break;case"upper-roman":n=u.Generate.ListRoman(r);break;case"lower-roman":n=u.Generate.ListRoman(r).toLowerCase();break;case"lower-alpha":n=u.Generate.ListAlpha(r).toLowerCase();break;case"upper-alpha":n=u.Generate.ListAlpha(r)}return n+". 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